package com.itheima.maipiao.mai04;

import java.util.concurrent.locks.ReentrantLock;

/*
使用锁来解决线程安全问题

 */
public class Ticket implements Runnable {
    private int count=100;
    private ReentrantLock lock= new ReentrantLock();
    @Override
    public void run() {
        while(true){
            //加锁
            lock.lock();
            if(count<=0){
                break;
            }else {
                try {
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                count--;
                System.out.println(Thread.currentThread().getName()+"正在卖票,还剩"+count);
            }
            //释放锁
            lock.unlock();
        }
    }
}
